mp4.c 64.2 KB
Newer Older
1 2 3
/*****************************************************************************
 * mp4.c : MP4 file input module for vlc
 *****************************************************************************
Derk-Jan Hartman's avatar
Derk-Jan Hartman committed
4
 * Copyright (C) 2001-2004 VideoLAN
5
 * $Id$
6
 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
7
 *
8 9 10 11
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
12
 *
13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#include <stdlib.h>                                      /* malloc(), free() */

#include <vlc/vlc.h>
#include <vlc/input.h>
30
#include <vlc_playlist.h>
31
#include "iso_lang.h"
32
#include "vlc_meta.h"
33

34
#include "libmp4.h"
35
#include "drms.h"
36 37 38 39

/*****************************************************************************
 * Module descriptor
 *****************************************************************************/
40 41
static int  Open ( vlc_object_t * );
static void Close( vlc_object_t * );
42

43
vlc_module_begin();
Derk-Jan Hartman's avatar
Derk-Jan Hartman committed
44
    set_description( _("MP4 stream demuxer") );
45
    set_capability( "demux", 242 );
46
    set_callbacks( Open, Close );
47 48
vlc_module_end();

49 50 51 52 53 54 55 56 57 58 59
/*****************************************************************************
 * Local prototypes
 *****************************************************************************/
static int    Demux   ( input_thread_t * );
static int    DemuxRef( input_thread_t *p_input )
{
    return 0;
}
static int   Seek     ( input_thread_t *, mtime_t );
static int   Control  ( input_thread_t *, int, va_list );

60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146
/* Contain all information about a chunk */
typedef struct
{
    uint64_t     i_offset; /* absolute position of this chunk in the file */
    uint32_t     i_sample_description_index; /* index for SampleEntry to use */
    uint32_t     i_sample_count; /* how many samples in this chunk */
    uint32_t     i_sample_first; /* index of the first sample in this chunk */

    /* now provide way to calculate pts, dts, and offset without to
        much memory and with fast acces */

    /* with this we can calculate dts/pts without waste memory */
    uint64_t     i_first_dts;
    uint32_t     *p_sample_count_dts;
    uint32_t     *p_sample_delta_dts; /* dts delta */

    /* TODO if needed add pts
        but quickly *add* support for edts and seeking */

} mp4_chunk_t;


 /* Contain all needed information for read all track with vlc */
typedef struct
{
    int i_track_ID;     /* this should be unique */

    int b_ok;           /* The track is usable */
    int b_enable;       /* is the trak enable by default */
    vlc_bool_t b_selected;     /* is the trak being played */

    es_format_t fmt;
    es_out_id_t *p_es;

    /* display size only ! */
    int i_width;
    int i_height;

    /* more internal data */
    uint64_t        i_timescale;    /* time scale for this track only */

    /* elst */
    int             i_elst;         /* current elst */
    int64_t         i_elst_time;    /* current elst start time (in movie time scale)*/
    MP4_Box_t       *p_elst;        /* elst (could be NULL) */

    /* give the next sample to read, i_chunk is to find quickly where
      the sample is located */
    uint32_t         i_sample;       /* next sample to read */
    uint32_t         i_chunk;        /* chunk where next sample is stored */
    /* total count of chunk and sample */
    uint32_t         i_chunk_count;
    uint32_t         i_sample_count;

    mp4_chunk_t    *chunk; /* always defined  for each chunk */

    /* sample size, p_sample_size defined only if i_sample_size == 0
        else i_sample_size is size for all sample */
    uint32_t         i_sample_size;
    uint32_t         *p_sample_size; /* XXX perhaps add file offset if take
                                    too much time to do sumations each time*/

    MP4_Box_t *p_stbl;  /* will contain all timing information */
    MP4_Box_t *p_stsd;  /* will contain all data to initialize decoder */
    MP4_Box_t *p_sample;/* point on actual sdsd */

    vlc_bool_t b_drms;
    void      *p_drms;

} mp4_track_t;


struct demux_sys_t
{
    MP4_Box_t    *p_root;      /* container for the whole file */

    mtime_t      i_pcr;

    uint64_t     i_time;        /* time position of the presentation
                                 * in movie timescale */
    uint64_t     i_timescale;   /* movie time scale */
    uint64_t     i_duration;    /* movie duration */
    unsigned int i_tracks;      /* number of tracks */
    mp4_track_t *track;    /* array of track */
};


147
/*****************************************************************************
148
 * Declaration of local function
149
 *****************************************************************************/
Laurent Aimar's avatar
Laurent Aimar committed
150 151
static void MP4_TrackCreate ( input_thread_t *, mp4_track_t *, MP4_Box_t  *);
static void MP4_TrackDestroy( input_thread_t *, mp4_track_t * );
152

Laurent Aimar's avatar
Laurent Aimar committed
153 154
static int  MP4_TrackSelect ( input_thread_t *, mp4_track_t *, mtime_t );
static void MP4_TrackUnselect(input_thread_t *, mp4_track_t * );
155

Laurent Aimar's avatar
Laurent Aimar committed
156
static int  MP4_TrackSeek   ( input_thread_t *, mp4_track_t *, mtime_t );
157

Laurent Aimar's avatar
Laurent Aimar committed
158 159 160
static uint64_t MP4_TrackGetPos    ( mp4_track_t * );
static int      MP4_TrackSampleSize( mp4_track_t * );
static int      MP4_TrackNextSample( input_thread_t *, mp4_track_t * );
161
static void     MP4_TrackSetELST( input_thread_t *, mp4_track_t *, int64_t );
Laurent Aimar's avatar
Laurent Aimar committed
162 163

/* Return time in s of a track */
164
static inline int64_t MP4_TrackGetPTS( input_thread_t *p_input, mp4_track_t *p_track )
Laurent Aimar's avatar
Laurent Aimar committed
165 166 167
{
    unsigned int i_sample;
    unsigned int i_index;
168
    int64_t i_dts;
Laurent Aimar's avatar
Laurent Aimar committed
169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190

    i_sample = p_track->i_sample - p_track->chunk[p_track->i_chunk].i_sample_first;
    i_dts = p_track->chunk[p_track->i_chunk].i_first_dts;
    i_index = 0;
    while( i_sample > 0 )
    {
        if( i_sample > p_track->chunk[p_track->i_chunk].p_sample_count_dts[i_index] )
        {
            i_dts += p_track->chunk[p_track->i_chunk].p_sample_count_dts[i_index] *
                        p_track->chunk[p_track->i_chunk].p_sample_delta_dts[i_index];
            i_sample -= p_track->chunk[p_track->i_chunk].p_sample_count_dts[i_index];
            i_index++;
        }
        else
        {
            i_dts += i_sample *
                        p_track->chunk[p_track->i_chunk].p_sample_delta_dts[i_index];
            i_sample = 0;
            break;
        }
    }

191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210
    /* now handle elst */
    if( p_track->p_elst )
    {
        demux_sys_t         *p_sys = p_input->p_demux_data;
        MP4_Box_data_elst_t *elst = p_track->p_elst->data.p_elst;

        /* convert to offset */
        if( ( elst->i_media_rate_integer[p_track->i_elst] > 0 ||
              elst->i_media_rate_fraction[p_track->i_elst] > 0 ) &&
            elst->i_media_time[p_track->i_elst] > 0 )
        {
            i_dts -= elst->i_media_time[p_track->i_elst];
        }

        /* add i_elst_time */
        i_dts += p_track->i_elst_time * p_track->i_timescale / p_sys->i_timescale;

        if( i_dts < 0 ) i_dts = 0;
    }

Laurent Aimar's avatar
Laurent Aimar committed
211 212 213 214 215 216
    return (int64_t)1000000 * i_dts / p_track->i_timescale;
}
static inline int64_t MP4_GetMoviePTS(demux_sys_t *p_sys )
{
    return (int64_t)1000000 * p_sys->i_time / p_sys->i_timescale;
}
217

Laurent Aimar's avatar
Laurent Aimar committed
218
#define FREE( p ) if( p ) { free( p ); (p) = NULL;}
219

220
/*****************************************************************************
221
 * Open: check file and initializes MP4 structures
222
 *****************************************************************************/
223
static int Open( vlc_object_t * p_this )
224
{
225
    input_thread_t  *p_input = (input_thread_t *)p_this;
226
    demux_sys_t     *p_sys;
227

228
    uint8_t         *p_peek;
229

230
    MP4_Box_t       *p_ftyp;
231
    MP4_Box_t       *p_rmra;
232 233
    MP4_Box_t       *p_mvhd;
    MP4_Box_t       *p_trak;
234

235
    unsigned int    i;
236
    vlc_bool_t      b_seekable;
237

238
    /* a little test to see if it could be a mp4 */
239
    if( stream_Peek( p_input->s, &p_peek, 8 ) < 8 )
240 241
    {
        msg_Warn( p_input, "MP4 plugin discarded (cannot peek)" );
242
        return VLC_EGENERIC;
243
    }
244
    switch( VLC_FOURCC( p_peek[4], p_peek[5], p_peek[6], p_peek[7] ) )
245
    {
246 247 248 249 250 251 252 253 254
        case FOURCC_ftyp:
        case FOURCC_moov:
        case FOURCC_foov:
        case FOURCC_moof:
        case FOURCC_mdat:
        case FOURCC_udta:
        case FOURCC_free:
        case FOURCC_skip:
        case FOURCC_wide:
255
        case VLC_FOURCC( 'p', 'n', 'o', 't' ):
256 257 258
            break;
         default:
            msg_Warn( p_input, "MP4 plugin discarded (not a valid file)" );
259
            return VLC_EGENERIC;
260
    }
261

262
    /* I need to seek */
263 264
    stream_Control( p_input->s, STREAM_CAN_SEEK, &b_seekable );
    if( !b_seekable )
265
    {
266 267
        msg_Warn( p_input, "MP4 plugin discarded (unseekable)" );
        return VLC_EGENERIC;
268
    }
269

270 271 272 273 274
    /*Set exported functions */
    p_input->pf_demux = Demux;
    p_input->pf_demux_control = Control;

    /* create our structure that will contains all data */
275 276
    p_input->p_demux_data = p_sys = malloc( sizeof( demux_sys_t ) );
    memset( p_sys, 0, sizeof( demux_sys_t ) );
277 278

    /* Now load all boxes ( except raw data ) */
279
    if( ( p_sys->p_root = MP4_BoxGetRoot( p_input ) ) == NULL )
280 281
    {
        msg_Warn( p_input, "MP4 plugin discarded (not a valid file)" );
Laurent Aimar's avatar
Laurent Aimar committed
282
        goto error;
283 284
    }

285
    MP4_BoxDumpStructure( p_input, p_sys->p_root );
286

287
    if( ( p_ftyp = MP4_BoxGet( p_sys->p_root, "/ftyp" ) ) )
288 289 290 291
    {
        switch( p_ftyp->data.p_ftyp->i_major_brand )
        {
            case( FOURCC_isom ):
292
                msg_Dbg( p_input,
293 294
                         "ISO Media file (isom) version %d.",
                         p_ftyp->data.p_ftyp->i_minor_version );
295 296
                break;
            default:
297
                msg_Dbg( p_input,
298 299
                         "unrecognized major file specification (%4.4s).",
                          (char*)&p_ftyp->data.p_ftyp->i_major_brand );
300 301 302 303 304
                break;
        }
    }
    else
    {
305
        msg_Dbg( p_input, "file type box missing (assuming ISO Media file)" );
306 307 308
    }

    /* the file need to have one moov box */
309
    if( MP4_BoxCount( p_sys->p_root, "/moov" ) <= 0 )
310
    {
311
        MP4_Box_t *p_foov = MP4_BoxGet( p_sys->p_root, "/foov" );
312 313 314 315

        if( !p_foov )
        {
            msg_Err( p_input, "MP4 plugin discarded (no moov box)" );
316
            goto error;
317 318 319
        }
        /* we have a free box as a moov, rename it */
        p_foov->i_type = FOURCC_moov;
320 321
    }

322
    if( ( p_rmra = MP4_BoxGet( p_sys->p_root,  "/moov/rmra" ) ) )
323 324 325 326 327 328 329 330 331 332 333 334 335
    {
        playlist_t *p_playlist;
        int        i_count = MP4_BoxCount( p_rmra, "rmda" );
        int        i;

        msg_Dbg( p_input, "detected playlist mov file (%d ref)", i_count );

        p_playlist =
            (playlist_t *)vlc_object_find( p_input,
                                           VLC_OBJECT_PLAYLIST,
                                           FIND_ANYWHERE );
        if( p_playlist )
        {
336
            //p_playlist->pp_items[p_playlist->i_index]->b_autodeletion = VLC_TRUE;
337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358
            for( i = 0; i < i_count; i++ )
            {
                MP4_Box_t *p_rdrf = MP4_BoxGet( p_rmra, "rmda[%d]/rdrf", i );
                char      *psz_ref;
                uint32_t  i_ref_type;

                if( !p_rdrf || !( psz_ref = p_rdrf->data.p_rdrf->psz_ref ) )
                {
                    continue;
                }
                i_ref_type = p_rdrf->data.p_rdrf->i_ref_type;

                msg_Dbg( p_input, "new ref=`%s' type=%4.4s",
                         psz_ref, (char*)&i_ref_type );

                if( i_ref_type == VLC_FOURCC( 'u', 'r', 'l', ' ' ) )
                {
                    if( strstr( psz_ref, "qt5gateQT" ) )
                    {
                        msg_Dbg( p_input, "ignoring pseudo ref =`%s'", psz_ref );
                        continue;
                    }
359 360
                    if( !strncmp( psz_ref, "http://", 7 ) ||
                        !strncmp( psz_ref, "rtsp://", 7 ) )
361 362
                    {
                        msg_Dbg( p_input, "adding ref = `%s'", psz_ref );
Clément Stenac's avatar
Clément Stenac committed
363
                        playlist_Add( p_playlist, psz_ref, psz_ref,
Gildas Bazin's avatar
 
Gildas Bazin committed
364
                                      PLAYLIST_APPEND, PLAYLIST_END );
365 366 367 368
                    }
                    else
                    {
                        /* msg dbg relative ? */
369 370
                        char *psz_absolute = alloca( strlen( p_input->psz_source ) + strlen( psz_ref ) + 1);
                        char *end = strrchr( p_input->psz_source, '/' );
371 372 373

                        if( end )
                        {
374
                            int i_len = end + 1 - p_input->psz_source;
375

376
                            strncpy( psz_absolute, p_input->psz_source, i_len);
377
                            psz_absolute[i_len] = '\0';
378 379 380 381 382 383 384
                        }
                        else
                        {
                            strcpy( psz_absolute, "" );
                        }
                        strcat( psz_absolute, psz_ref );
                        msg_Dbg( p_input, "adding ref = `%s'", psz_absolute );
Clément Stenac's avatar
Clément Stenac committed
385
                        playlist_Add( p_playlist, psz_absolute, psz_absolute,
Gildas Bazin's avatar
 
Gildas Bazin committed
386
                                      PLAYLIST_APPEND, PLAYLIST_END );
387 388 389 390
                    }
                }
                else
                {
Laurent Aimar's avatar
Laurent Aimar committed
391 392
                    msg_Err( p_input, "unknown ref type=%4.4s FIXME (send a bug report)",
                             (char*)&p_rdrf->data.p_rdrf->i_ref_type );
393 394 395 396 397 398 399 400 401 402
                }
            }
            vlc_object_release( p_playlist );
        }
        else
        {
            msg_Err( p_input, "can't find playlist" );
        }
    }

403
    if( !(p_mvhd = MP4_BoxGet( p_sys->p_root, "/moov/mvhd" ) ) )
404
    {
405 406 407
        if( !p_rmra )
        {
            msg_Err( p_input, "cannot find /moov/mvhd" );
408
            goto error;
409 410 411 412
        }
        else
        {
            msg_Warn( p_input, "cannot find /moov/mvhd (pure ref file)" );
413
            p_input->pf_demux = DemuxRef;
414
            return VLC_SUCCESS;
415
        }
416 417 418
    }
    else
    {
419 420
        p_sys->i_timescale = p_mvhd->data.p_mvhd->i_timescale;
        p_sys->i_duration = p_mvhd->data.p_mvhd->i_duration;
421
    }
422

423
    if( !( p_sys->i_tracks = MP4_BoxCount( p_sys->p_root, "/moov/trak" ) ) )
424
    {
425
        msg_Err( p_input, "cannot find any /moov/trak" );
426
        goto error;
427
    }
428
    msg_Dbg( p_input, "find %d track%c",
429 430
                        p_sys->i_tracks,
                        p_sys->i_tracks ? 's':' ' );
431

432 433 434 435 436 437
    /*  create one program */
    vlc_mutex_lock( &p_input->stream.stream_lock );
    if( input_InitStream( p_input, 0 ) == -1)
    {
        vlc_mutex_unlock( &p_input->stream.stream_lock );
        msg_Err( p_input, "cannot init stream" );
438
        goto error;
439
    }
440
    if( p_sys->i_duration/p_sys->i_timescale > 0 )
441 442 443
    {
        p_input->stream.i_mux_rate =
            p_input->stream.p_selected_area->i_size / 50 /
444
            ( p_sys->i_duration / p_sys->i_timescale );
445 446 447 448 449 450 451 452
    }
    else
    {
        p_input->stream.i_mux_rate = 0;
    }
    vlc_mutex_unlock( &p_input->stream.stream_lock );


453
    /* allocate memory */
Laurent Aimar's avatar
Laurent Aimar committed
454 455
    p_sys->track = calloc( p_sys->i_tracks, sizeof( mp4_track_t ) );
    memset( p_sys->track, 0, p_sys->i_tracks * sizeof( mp4_track_t ) );
456 457

    /* now process each track and extract all usefull informations */
458
    for( i = 0; i < p_sys->i_tracks; i++ )
459
    {
460 461
        p_trak = MP4_BoxGet( p_sys->p_root, "/moov/trak[%d]", i );
        MP4_TrackCreate( p_input, &p_sys->track[i], p_trak );
462

463
        if( p_sys->track[i].b_ok )
464 465
        {
            char *psz_cat;
466
            switch( p_sys->track[i].fmt.i_cat )
467 468 469 470 471 472 473 474
            {
                case( VIDEO_ES ):
                    psz_cat = "video";
                    break;
                case( AUDIO_ES ):
                    psz_cat = "audio";
                    break;
                default:
475
                    psz_cat = "unknown";
476 477
                    break;
            }
478

479 480
            msg_Dbg( p_input, "adding track[Id 0x%x] %s (%s) language %s",
                            p_sys->track[i].i_track_ID,
481
                            psz_cat,
482 483
                            p_sys->track[i].b_enable ? "enable":"disable",
                            p_sys->track[i].fmt.psz_language ? p_sys->track[i].fmt.psz_language : "undef" );
484 485 486
        }
        else
        {
487
            msg_Dbg( p_input, "ignoring track[Id 0x%x]", p_sys->track[i].i_track_ID );
488 489 490
        }

    }
491 492 493
    return VLC_SUCCESS;

error:
494
    if( p_sys->p_root )
Laurent Aimar's avatar
Laurent Aimar committed
495
    {
496
        MP4_BoxFree( p_input, p_sys->p_root );
Laurent Aimar's avatar
Laurent Aimar committed
497
    }
498
    free( p_sys );
499
    return VLC_EGENERIC;
500 501 502
}

/*****************************************************************************
503
 * Demux: read packet and send them to decoders
504 505
 *****************************************************************************
 * TODO check for newly selected track (ie audio upt to now )
506
 *****************************************************************************/
507
static int Demux( input_thread_t *p_input )
508
{
509
    demux_sys_t *p_sys = p_input->p_demux_data;
510
    unsigned int i_track;
511

512 513 514 515 516

    unsigned int i_track_selected;
    vlc_bool_t   b_play_audio;

    /* check for newly selected/unselected track */
517
    for( i_track = 0, i_track_selected = 0; i_track <  p_sys->i_tracks; i_track++ )
518
    {
Laurent Aimar's avatar
Laurent Aimar committed
519 520 521
        mp4_track_t *tk = &p_sys->track[i_track];

        if( tk->b_selected && tk->i_sample >= tk->i_sample_count )
522
        {
Laurent Aimar's avatar
Laurent Aimar committed
523 524
            msg_Warn( p_input, "track[0x%x] will be disabled", tk->i_track_ID );
            MP4_TrackUnselect( p_input, tk);
525
        }
Laurent Aimar's avatar
Laurent Aimar committed
526
        else if( tk->b_ok )
527
        {
528
            vlc_bool_t b;
Laurent Aimar's avatar
Laurent Aimar committed
529
            es_out_Control( p_input->p_es_out, ES_OUT_GET_ES_STATE, tk->p_es, &b );
530

Laurent Aimar's avatar
Laurent Aimar committed
531
            if( tk->b_selected && !b )
532
            {
Laurent Aimar's avatar
Laurent Aimar committed
533
                MP4_TrackUnselect( p_input, tk );
534
            }
Laurent Aimar's avatar
Laurent Aimar committed
535
            else if( !tk->b_selected && b)
536
            {
Laurent Aimar's avatar
Laurent Aimar committed
537
                MP4_TrackSelect( p_input, tk, MP4_GetMoviePTS( p_sys ) );
538 539
            }

Laurent Aimar's avatar
Laurent Aimar committed
540
            if( tk->b_selected )
541 542 543 544 545 546 547 548 549
            {
                i_track_selected++;
            }
        }
    }

    if( i_track_selected <= 0 )
    {
        msg_Warn( p_input, "no track selected, exiting..." );
Laurent Aimar's avatar
Laurent Aimar committed
550
        return 0;
551 552
    }

553
    /* first wait for the good time to read a packet */
554
    es_out_Control( p_input->p_es_out, ES_OUT_SET_PCR, p_sys->i_pcr );
555 556

    /* update pcr XXX in mpeg scale so in 90000 unit/s */
557
    p_sys->i_pcr = MP4_GetMoviePTS( p_sys );
558 559

    /* we will read 100ms for each stream so ...*/
560
    p_sys->i_time += __MAX( p_sys->i_timescale / 10 , 1 );
561

Gildas Bazin's avatar
 
Gildas Bazin committed
562 563
    /* Check if we need to send the audio data to decoder */
    b_play_audio = !p_input->stream.control.b_mute;
564

565
    for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
566
    {
Laurent Aimar's avatar
Laurent Aimar committed
567 568 569
        mp4_track_t *tk = &p_sys->track[i_track];

        if( !tk->b_ok || !tk->b_selected )
570
        {
571
            continue;
572
        }
573

574
        while( MP4_TrackGetPTS( p_input, tk ) < MP4_GetMoviePTS( p_sys ) )
575
        {
576 577 578 579 580 581
#if 0
            msg_Dbg( p_input, "tk=%lld mv=%lld",
                     MP4_TrackGetPTS( p_input, tk ),
                     MP4_GetMoviePTS( p_sys ) );
#endif

Laurent Aimar's avatar
Laurent Aimar committed
582 583
            if( MP4_TrackSampleSize( tk ) > 0 &&
                ( b_play_audio || tk->fmt.i_cat != AUDIO_ES ) )
584
            {
585
                block_t *p_block;
586

587
                /* go,go go ! */
Laurent Aimar's avatar
Laurent Aimar committed
588
                if( stream_Seek( p_input->s, MP4_TrackGetPos( tk ) ) )
589
                {
Laurent Aimar's avatar
Laurent Aimar committed
590 591
                    msg_Warn( p_input, "track[0x%x] will be disabled (eof?)", tk->i_track_ID );
                    MP4_TrackUnselect( p_input, tk );
592 593 594
                    break;
                }

Laurent Aimar's avatar
Laurent Aimar committed
595
                /* now read pes */
596
                if( ( p_block = stream_Block( p_input->s,
Laurent Aimar's avatar
Laurent Aimar committed
597
                                              MP4_TrackSampleSize( tk ) ) ) == NULL )
598
                {
Laurent Aimar's avatar
Laurent Aimar committed
599 600
                    msg_Warn( p_input, "track[0x%x] will be disabled (eof?)", tk->i_track_ID );
                    MP4_TrackUnselect( p_input, tk );
601 602
                    break;
                }
Gildas Bazin's avatar
 
Gildas Bazin committed
603

Laurent Aimar's avatar
Laurent Aimar committed
604
                if( tk->b_drms && tk->p_drms )
605
                {
Laurent Aimar's avatar
Laurent Aimar committed
606 607
                    drms_decrypt( tk->p_drms,
                                  (uint32_t*)p_block->p_buffer,
608 609
                                  p_block->i_buffer );
                }
610
                p_block->i_dts = MP4_TrackGetPTS( p_input, tk );
611

Laurent Aimar's avatar
Laurent Aimar committed
612
                p_block->i_pts = tk->fmt.i_cat == VIDEO_ES ? 0 : p_block->i_dts;
613

Laurent Aimar's avatar
Laurent Aimar committed
614
                if( !tk->b_drms || ( tk->b_drms && tk->p_drms ) )
615
                {
Laurent Aimar's avatar
Laurent Aimar committed
616
                    es_out_Send( p_input->p_es_out, tk->p_es, p_block );
617
                }
Laurent Aimar's avatar
Laurent Aimar committed
618
            }
619

Laurent Aimar's avatar
Laurent Aimar committed
620 621 622 623
            /* Next sample */
            if( MP4_TrackNextSample( p_input, tk ) )
            {
                break;
624
            }
625 626 627
        }
    }

Laurent Aimar's avatar
Laurent Aimar committed
628
    return 1;
629
}
630
/*****************************************************************************
631
 * Seek: Got to i_date
632
 ******************************************************************************/
633
static int   Seek     ( input_thread_t *p_input, mtime_t i_date )
634
{
635
    demux_sys_t *p_sys = p_input->p_demux_data;
636
    unsigned int i_track;
Laurent Aimar's avatar
Laurent Aimar committed
637

638
    /* First update update global time */
639 640
    p_sys->i_time = i_date * p_sys->i_timescale / 1000000;
    p_sys->i_pcr  = i_date* 9 / 100;
641

642
    /* Now for each stream try to go to this time */
643
    for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
644
    {
Laurent Aimar's avatar
Laurent Aimar committed
645 646 647
        mp4_track_t *tk = &p_sys->track[i_track];

        if( tk->b_ok && tk->b_selected )
648
        {
Laurent Aimar's avatar
Laurent Aimar committed
649
            MP4_TrackSeek( p_input, tk, i_date );
650
        }
651 652 653
    }
    return( 1 );
}
654 655

/*****************************************************************************
656
 * Control:
657
 *****************************************************************************/
Gildas Bazin's avatar
 
Gildas Bazin committed
658
static int Control( input_thread_t *p_input, int i_query, va_list args )
659 660 661
{
    demux_sys_t *p_sys = p_input->p_demux_data;

Gildas Bazin's avatar
 
Gildas Bazin committed
662
    double f, *pf;
663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680
    int64_t i64, *pi64;

    switch( i_query )
    {
        case DEMUX_GET_POSITION:
            pf = (double*)va_arg( args, double * );
            if( p_sys->i_duration > 0 )
            {
                *pf = (double)p_sys->i_time / (double)p_sys->i_duration;
            }
            else
            {
                *pf = 0.0;
            }
            return VLC_SUCCESS;

        case DEMUX_SET_POSITION:
            f = (double)va_arg( args, double );
Gildas Bazin's avatar
 
Gildas Bazin committed
681 682 683 684 685 686 687 688
            if( p_sys->i_timescale > 0 )
            {
                i64 = (int64_t)( f * (double)1000000 *
                                 (double)p_sys->i_duration /
                                 (double)p_sys->i_timescale );
                return Seek( p_input, i64 );
            }
            else return VLC_SUCCESS;
689 690 691

        case DEMUX_GET_TIME:
            pi64 = (int64_t*)va_arg( args, int64_t * );
Gildas Bazin's avatar
 
Gildas Bazin committed
692 693 694 695 696 697 698
            if( p_sys->i_timescale > 0 )
            {
                *pi64 = (mtime_t)1000000 *
                        (mtime_t)p_sys->i_time /
                        (mtime_t)p_sys->i_timescale;
            }
            else *pi64 = 0;
699 700 701 702 703 704 705 706
            return VLC_SUCCESS;

        case DEMUX_SET_TIME:
            i64 = (int64_t)va_arg( args, int64_t );
            return Seek( p_input, i64 );

        case DEMUX_GET_LENGTH:
            pi64 = (int64_t*)va_arg( args, int64_t * );
Gildas Bazin's avatar
 
Gildas Bazin committed
707 708 709 710 711 712 713
            if( p_sys->i_timescale > 0 )
            {
                *pi64 = (mtime_t)1000000 *
                        (mtime_t)p_sys->i_duration /
                        (mtime_t)p_sys->i_timescale;
            }
            else *pi64 = 0;
714
            return VLC_SUCCESS;
Gildas Bazin's avatar
 
Gildas Bazin committed
715

716 717 718
        case DEMUX_GET_FPS:
            msg_Warn( p_input, "DEMUX_GET_FPS unimplemented !!" );
            return VLC_EGENERIC;
Gildas Bazin's avatar
 
Gildas Bazin committed
719

720
        case DEMUX_GET_META:
721 722 723 724 725 726 727 728 729 730
        {
            vlc_meta_t **pp_meta = (vlc_meta_t**)va_arg( args, vlc_meta_t** );
            vlc_meta_t *meta;
            MP4_Box_t  *p_udta   = MP4_BoxGet( p_sys->p_root, "/moov/udta" );
            MP4_Box_t  *p_0xa9xxx;
            if( p_udta == NULL )
            {
                return VLC_EGENERIC;
            }
            *pp_meta = meta = vlc_meta_New();
731 732
            for( p_0xa9xxx = p_udta->p_first; p_0xa9xxx != NULL;
                 p_0xa9xxx = p_0xa9xxx->p_next )
733 734 735
            {
                switch( p_0xa9xxx->i_type )
                {
736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774
                case FOURCC_0xa9nam:
                    vlc_meta_Add( meta, VLC_META_TITLE,
                                  p_0xa9xxx->data.p_0xa9xxx->psz_text );
                    break;
                case FOURCC_0xa9aut:
                    vlc_meta_Add( meta, VLC_META_AUTHOR,
                                  p_0xa9xxx->data.p_0xa9xxx->psz_text );
                    break;
                case FOURCC_0xa9ART:
                    vlc_meta_Add( meta, VLC_META_ARTIST,
                                  p_0xa9xxx->data.p_0xa9xxx->psz_text );
                    break;
                case FOURCC_0xa9cpy:
                    vlc_meta_Add( meta, VLC_META_COPYRIGHT,
                                  p_0xa9xxx->data.p_0xa9xxx->psz_text );
                    break;
                case FOURCC_0xa9day:
                    vlc_meta_Add( meta, VLC_META_DATE,
                                  p_0xa9xxx->data.p_0xa9xxx->psz_text );
                    break;
                case FOURCC_0xa9des:
                    vlc_meta_Add( meta, VLC_META_DESCRIPTION,
                                  p_0xa9xxx->data.p_0xa9xxx->psz_text );
                    break;

                case FOURCC_0xa9swr:
                case FOURCC_0xa9inf:
                case FOURCC_0xa9dir:
                case FOURCC_0xa9cmt:
                case FOURCC_0xa9req:
                case FOURCC_0xa9fmt:
                case FOURCC_0xa9prd:
                case FOURCC_0xa9prf:
                case FOURCC_0xa9src:
                    /* TODO one day, but they aren't really meaningfull */
                    break;

                default:
                    break;
775 776 777 778
                }
            }
            return VLC_SUCCESS;
        }
779

780 781 782 783 784 785 786 787 788 789
        default:
            msg_Err( p_input, "control query unimplemented !!!" );
            return demux_vaControlDefault( p_input, i_query, args );
    }
}

/*****************************************************************************
 * Close: frees unused data
 *****************************************************************************/
static void Close ( vlc_object_t * p_this )
790 791
{
    unsigned int i_track;
792
    input_thread_t *  p_input = (input_thread_t *)p_this;
793
    demux_sys_t *p_sys = p_input->p_demux_data;
794

795
    msg_Dbg( p_input, "freeing all memory" );
Laurent Aimar's avatar
Laurent Aimar committed
796

797 798
    MP4_BoxFree( p_input, p_sys->p_root );
    for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
799
    {
800
        MP4_TrackDestroy( p_input, &p_sys->track[i_track] );
801
    }
802
    FREE( p_sys->track );
803

804
    free( p_sys );
805 806 807
}


808

809 810 811 812
/****************************************************************************
 * Local functions, specific to vlc
 ****************************************************************************/

813 814
/* now create basic chunk data, the rest will be filled by MP4_CreateSamplesIndex */
static int TrackCreateChunksIndex( input_thread_t *p_input,
Laurent Aimar's avatar
Laurent Aimar committed
815
                                   mp4_track_t *p_demux_track )
816
{
817 818
    MP4_Box_t *p_co64; /* give offset for each chunk, same for stco and co64 */
    MP4_Box_t *p_stsc;
819

820 821 822 823 824 825
    unsigned int i_chunk;
    unsigned int i_index, i_last;

    if( ( !(p_co64 = MP4_BoxGet( p_demux_track->p_stbl, "stco" ) )&&
          !(p_co64 = MP4_BoxGet( p_demux_track->p_stbl, "co64" ) ) )||
        ( !(p_stsc = MP4_BoxGet( p_demux_track->p_stbl, "stsc" ) ) ))
826
    {
827
        return( VLC_EGENERIC );
828
    }
829 830 831

    p_demux_track->i_chunk_count = p_co64->data.p_co64->i_entry_count;
    if( !p_demux_track->i_chunk_count )
832
    {
833 834
        msg_Warn( p_input, "no chunk defined" );
        return( VLC_EGENERIC );
835
    }
836
    p_demux_track->chunk = calloc( p_demux_track->i_chunk_count,
Laurent Aimar's avatar
Laurent Aimar committed
837
                                   sizeof( mp4_chunk_t ) );
838 839 840

    /* first we read chunk offset */
    for( i_chunk = 0; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
841
    {
842 843
        p_demux_track->chunk[i_chunk].i_offset =
                p_co64->data.p_co64->i_chunk_offset[i_chunk];
844 845
    }

846 847 848 849 850 851
    /* now we read index for SampleEntry( soun vide mp4a mp4v ...)
        to be used for the sample XXX begin to 1
        We construct it begining at the end */
    i_last = p_demux_track->i_chunk_count; /* last chunk proceded */
    i_index = p_stsc->data.p_stsc->i_entry_count;
    if( !i_index )
852
    {
853 854
        msg_Warn( p_input, "cannot read chunk table or table empty" );
        return( VLC_EGENERIC );
855
    }
856 857

    while( i_index )
858
    {
859 860 861 862 863 864 865 866 867 868
        i_index--;
        for( i_chunk = p_stsc->data.p_stsc->i_first_chunk[i_index] - 1;
                i_chunk < i_last; i_chunk++ )
        {
            p_demux_track->chunk[i_chunk].i_sample_description_index =
                    p_stsc->data.p_stsc->i_sample_description_index[i_index];
            p_demux_track->chunk[i_chunk].i_sample_count =
                    p_stsc->data.p_stsc->i_samples_per_chunk[i_index];
        }
        i_last = p_stsc->data.p_stsc->i_first_chunk[i_index] - 1;
869 870
    }

871 872
    p_demux_track->chunk[0].i_sample_first = 0;
    for( i_chunk = 1; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
873
    {
874 875 876
        p_demux_track->chunk[i_chunk].i_sample_first =
            p_demux_track->chunk[i_chunk-1].i_sample_first +
                p_demux_track->chunk[i_chunk-1].i_sample_count;
877
    }
878

879 880 881
    msg_Dbg( p_input,
             "track[Id 0x%x] read %d chunk",
             p_demux_track->i_track_ID,
882
             p_demux_track->i_chunk_count );
883

884
    return( VLC_SUCCESS );
885
}
886
static int TrackCreateSamplesIndex( input_thread_t *p_input,
Laurent Aimar's avatar
Laurent Aimar committed
887
                                    mp4_track_t *p_demux_track )
888 889
{
    MP4_Box_t *p_stts; /* makes mapping between sample and decoding time,
890
                          ctts make same mapping but for composition time,
891
                          not yet used and probably not usefull */
892 893
    MP4_Box_t *p_stsz; /* gives sample size of each samples, there is also stz2
                          that uses a compressed form FIXME make them in libmp4
894 895 896
                          as a unique type */
    /* TODO use also stss and stsh table for seeking */
    /* FIXME use edit table */
897 898
    int64_t i_sample;
    int64_t i_chunk;
899

900 901
    int64_t i_index;
    int64_t i_index_sample_used;
902

903 904
    int64_t i_last_dts;

905 906
    p_stts = MP4_BoxGet( p_demux_track->p_stbl, "stts" );
    p_stsz = MP4_BoxGet( p_demux_track->p_stbl, "stsz" ); /* FIXME and stz2 */
907 908 909 910

    if( ( !p_stts )||( !p_stsz ) )
    {
        msg_Warn( p_input, "cannot read sample table" );
911
        return( VLC_EGENERIC );
912
    }
913

914 915 916 917 918 919 920 921 922 923 924 925 926 927
    p_demux_track->i_sample_count = p_stsz->data.p_stsz->i_sample_count;


    /* for sample size, there are 2 case */
    if( p_stsz->data.p_stsz->i_sample_size )
    {
        /* 1: all sample have the same size, so no need to construct a table */
        p_demux_track->i_sample_size = p_stsz->data.p_stsz->i_sample_size;
        p_demux_track->p_sample_size = NULL;
    }
    else
    {
        /* 2: each sample can have a different size */
        p_demux_track->i_sample_size = 0;
928
        p_demux_track->p_sample_size =
929
            calloc( p_demux_track->i_sample_count, sizeof( uint32_t ) );
930

931 932
        for( i_sample = 0; i_sample < p_demux_track->i_sample_count; i_sample++ )
        {
933
            p_demux_track->p_sample_size[i_sample] =
934 935 936 937 938 939 940
                    p_stsz->data.p_stsz->i_entry_size[i_sample];
        }
    }
    /* we have extract all information from stsz,
        now use stts */

    /* if we don't want to waste too much memory, we can't expand
941
       the box !, so each chunk will contain an "extract" of this table